unit Unit4;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, DB, ADODB, StdCtrls, ExtCtrls;

type
  TForm4 = class(TForm)
    Panel1: TPanel;
    Panel2: TPanel;
    Button1: TButton;
    Button2: TButton;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    ComboBox1: TComboBox;
    Edit1: TEdit;
    Edit2: TEdit;
    ComboBox2: TComboBox;
    ADOQuery1: TADOQuery;
    procedure FormShow(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    yh_bh: string;
  end;

var
  Form4: TForm4;

implementation

uses Unit3, Unit1, Unit5, Unit10;

{$R *.dfm}

// ... (Unit4的实现代码)
